Smart contract on Solidity for arbitrage of DEX exchanges with flash loans

Hello. I have experience building a complex deposit smart contract on Solidity. For simplicity of demonstration, I created a regular web interface with Bootstrap. Fast, simple, and understandable. To connect to the network (where the smart contract runs), MetaMask is usually used.
Ready to discuss details

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Hello, Mykyta! 🌟

My name is Semen, I am a developer with experience in creating DeFi applications, specifically arbitrage contracts with flash loans on DEX exchanges. I watched the video at the link, understood the logic of passive arbitrage through flash loans, and also noted the issue with fake wallets in the contract. I am ready to develop a clean contract for you with a frontend for local deployment and management (deposit, withdrawal, auto-withdrawal).

📋 Implementation Plan:
Smart Contract:
I will develop a contract in Solidity for arbitrage on DEX (for example, Uniswap/PancakeSwap).
I will use flash loans (Aave or dYdX).
I will add wallet verification: funds will only go to your wallets (specified in the contract).
… I will implement deposit, withdrawal, and auto-withdrawal functions.
Frontend:
I will create a simple frontend in React for local deployment.
I will add an interface for:
Depositing into the contract (specifying the amount, confirmation via MetaMask).
Withdrawing funds (manual or auto-withdrawal).
Viewing balance and transaction history.
Security:
I will check the contract for vulnerabilities (reentrancy, overflow).
I will add an access modifier (only your wallet will be able to manage the contract).

📋 Frontend (React):
For local deployment, I will add a simple React application with a connection to the contract via ethers.js. You will be able to deposit, withdraw funds, and set up auto-withdrawal through the browser with MetaMask.

💰 Cost and Timeline:
Development of the contract and frontend: 90,000 UAH (10-14 days).
Testing and security audit: 10,000 UAH.
Total: 100,000 UAH (within your budget).

❓ What’s Next:
Specify which DEX exchanges to use (Uniswap, PancakeSwap, etc.).
Provide a wallet for managing the contract.
I will start after agreement.
I look forward to your feedback! 🚀

Best regards, Semen 😊

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Hello
We reviewed the video — everything is clear, ready to collaborate.

We are the IcornA team, specializing in the development of crypto projects: smart contracts, DeFi, automation, front-end.
We have real experience, we work quickly and results-oriented. Ready for long-term collaboration.

Ready to:

Conduct an audit and fix the logic
… Create a working contract with flash loan
Make a simple front-end (local launch)

We are waiting for the code — we can start today!
Thank you for your time.

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Great, thank you for the details and the video 📹

I watched it and here’s how I see the task:

🔍 What needs to be implemented:
Audit and analysis of the smart contract

Review of the source code (in the video) — calculations, arbitration logic, flash loans.

… Identification of "fake" parts — especially withdrawals to external wallets.

Development of your own smart contract

A real working contract for DEX arbitration (Uniswap, Pancake, etc.).

With support for flash loans (Aave/Uniswap).

Gas optimization, security, tests.

Simple web interface (frontend)

Local launch (without deployment)

Interface: deposit, withdrawal, view status/balance/logs

Ability to specify wallets for withdrawal (or auto-withdraw)

(Optional) Telegram notifications about actions or profits

💰 Budget
We fully fit within the specified budget up to 100,000 UAH
I suggest in stages:

Stage 1 (audit + test contract) — 15–20k

Stage 2 (final contract + tests) — 30–35k

Stage 3 (frontend + auto-withdraw + local launch) — 20–25k

The remainder — for QA, minor adjustments, and support

⏳ Deadlines
10–14 days for the entire implementation
(you can start with MVP for tests)

👨💻 I work with Solidity, Hardhat, ethers.js, React, Next.js. With experience in DeFi, DEX bots, and automation.

📥 Send the source code of the contract and an example of the arbitration logic, if available — ready to get started!

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Hello. I have extensive experience with React/Node.js. I am ready for collaboration.

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Hello, Nikiti

I have some developments on the topic and can initially consult to avoid unnecessary expenses. Write to me in private messages.

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Hello!

I have reviewed the project description and video, and I understand the general idea: to implement a smart contract that uses flash loans for arbitrage between DEX exchanges, with the ability to manage deposits/withdrawals through a simple front end.

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Hello! I am a highly qualified web developer with over ✅ 7 years of experience in backend development and modern web technologies. My stack includes:

✅ Frontend: HTML, CSS, JavaScript, React.js, Vue.js, Angular
✅ Backend: PHP, Solidity, Laravel, CodeIgniter, Python, Django, Flask, Node.js
✅ Databases: MySQL, PostgreSQL
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Let’s collaborate and create something amazing together!

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Good day! Write. I will do it quickly and efficiently. We will discuss..........................

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